In a certain code, the words COME AT ONCE were written as XLNVZGLMXV. In the same code, which of the following would code OK?

In a certain code, the words COME AT ONCE were written as XLNVZGLMXV.

1.	In a certain code, the words COME AT ONCE were written as XLNVZGLMXV. In the same code, which of the following would code OK?
A.	LP
B.	LM
C.	KL
D.	KM
Answer» B. LM